Wear-resistant electric hoist chain

Abstract

The utility model relates to the technical field of electric hoist chains, and discloses a wear-resistant electric hoist chain which comprises a chain ring, the two ends of the chain ring are not closed, a U-shaped seat is fixedly connected to the bottom end in the chain ring, transverse strips are fixedly connected to the two sides of the top of the U-shaped seat respectively, moving grooves are formed in the tops of the transverse strips respectively, and the moving grooves are communicated with the U-shaped seat. And sliding rods are fixedly connected into the moving grooves correspondingly, the surfaces of the sliding rods are sleeved with springs correspondingly, limiting rods are slidably arranged on the surfaces of the sliding rods correspondingly, and circular rings are rotationally arranged at the ends, close to each other, of the limiting rods correspondingly. According to the wear-resistant electric hoist chain, the circular ring is used for limiting the chain rings hung in the U-shaped seat, the right side of the connecting rod is in threaded connection with the nut, the connecting rod can enable the two ends of the chain ring to be closed, meanwhile, the strength of the chain ring is enhanced, and when a single chain ring is damaged, the connecting rod is detached, the limiting rod is pushed towards the two sides, and limiting of the damaged chain ring is relieved; and the damaged chain ring is taken out from the opening to be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hoist chains, in particular to a wear-resistant electric hoist chain. Background Art

[0002] The electric chain hoist is a light and small lifting equipment. The electric chain hoist consists of an electric motor, a transmission mechanism and a sprocket. All electric chain hoists are produced in accordance with international standards. The body has a beautiful appearance, is strong and durable, and all internal gears are quenched at high temperature, which increases the wear resistance and toughness of the gears. The electric chain hoist adopts the most advanced international technology, with fine workmanship and tight fit between gears. The characteristics of the electric chain hoist: advanced performance structure, small size, light weight, reliable performance, easy operation, wide range of applications, and it is very convenient for lifting heavy objects, loading and unloading, repairing equipment, and lifting goods.

[0003] At present, the chains on the chain electric hoists are mostly integrated, and wear easily occurs between each chain link during use, and a single chain link cannot be replaced after being damaged. Therefore, a wear-resistant electric hoist chain is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to provide a wear-resistant electric hoist chain to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a wear-resistant electric hoist chain, comprising a chain ring, wherein the two ends of the chain ring are not closed, and the bottom end inside the chain ring is fixedly connected to a U-shaped seat, and the two sides of the top of the U-shaped seat are respectively fixedly connected to cross bars, and the tops of the cross bars are respectively provided with movable grooves, and sliding rods are respectively fixedly connected in the movable grooves, and the surfaces of the sliding rods are respectively sleeved with springs, and the surfaces of the sliding rods are respectively slidably provided with limit rods, and the ends of the limit rods close to each other are respectively rotatably provided with rings.

[0006] Preferably, one end of the spring is fixedly connected to the limiting rod, and the other end of the spring is fixedly connected to the cross bar.

[0007] The two ends of the chain ring are not closed, so that two adjacent chain rings can be disassembled through the openings. A U-shaped seat is fixedly connected to the bottom end of the chain ring. When adjacent chain rings are placed on each other, the chain below is hung in the U-shaped seat, providing additional structural support. Horizontal bars are fixedly connected on both sides of the top of the U-shaped seat, and a movable groove is opened on the top of the horizontal bar.

[0008] Preferably, the limiting rods are L-shaped, and the limiting rods are slidably disposed in the moving grooves respectively.

[0009] Preferably, the chain ring is provided with two through holes on the opening side, connecting rods are inserted into the two through holes, and a nut is threadedly connected to the right side of the connecting rod.

[0010] A ring is rotatably set at one end of the limit rod that is close to each other. The ring is used to limit the chain ring hung in the U-shaped seat. The chain ring has two through holes on the open side. Connecting rods are inserted into these two through holes. A nut is threaded on the right side of the connecting rod. The connecting rod can close the two ends of the chain and enhance the strength of the chain ring.

[0011] Preferably, a movable groove is provided inside the U-shaped seat, and a ball is movably arranged in the movable groove.

[0012] Preferably, there are a plurality of balls, and the plurality of balls are arranged along the movable groove.

[0013] A movable groove is provided inside the U-shaped seat, and a ball is movably arranged in the movable groove. The arrangement of the ball is used to reduce the friction between the chain links during movement and increase the wear resistance thereof.

[0014] Preferably, the arc-surface sleeve on the top of the chain ring is provided with a wear-resistant pad.

[0015] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0016] The U-shaped seat is fixedly connected to the bottom end of the chain link, and when the adjacent chain links are mounted on each other, the chain located below is hung in the U-shaped seat, providing additional structural support. Cross bars are fixedly connected to the top two sides of the U-shaped seat, and a movable groove is provided on the top of the cross bar for fixing the sliding rod. A limit plate is slidingly arranged on the surface of the sliding rod, and a spring is sleeved thereon. Pulling the limit rod can make the spring contract, and a ring is rotated at one end of the limit rod close to each other, and the ring is used to limit the chain link hung in the U-shaped seat. The chain link has two through holes on the opening side, and connecting rods are inserted in the two through holes. A nut is threadedly connected to the right side of the connecting rod, and the connecting rod can close the two ends of the ring chain and enhance the strength of the chain link at the same time. When a single chain link is damaged, the connecting rod is disassembled, and the limit rod is pushed to both sides to release the limit of the damaged chain link, and the damaged chain link can be taken out from the opening for replacement.

[0017] Second, the utility model has a movable groove inside the U-shaped seat, in which a ball is movably arranged. The arrangement of the ball is used to reduce the friction of the chain ring during movement in the U-shaped seat and increase its wear resistance. The arc surface sleeve on the top of the chain ring is provided with a wear-resistant pad, which further enhances the wear resistance of the chain and extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 3 This is an enlarged structural diagram of the utility model at A;

[0021] Figure 4 It is a front cutaway structural schematic diagram of the U-shaped seat of the utility model.

[0022] Among them: 1. chain ring; 2. U-shaped seat; 3. horizontal bar; 4. sliding rod; 5. spring; 6. limit rod; 7. ring; 8. connecting rod; 9. ball; 10. wear-resistant pad. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides the following technical solutions:

[0025] Embodiment 1

[0026] See also Figure 1 , Figure 2 , Figure 3 A wear-resistant electric hoist chain comprises a chain link 1, the two ends of the chain link 1 are not closed, the bottom end inside the chain link 1 is fixedly connected with a U-shaped seat 2, the two sides of the top of the U-shaped seat 2 are respectively fixedly connected with horizontal bars 3, the tops of the horizontal bars 3 are respectively provided with movable grooves, and sliding rods 4 are respectively fixedly connected in the movable grooves, and the surfaces of the sliding rods 4 are respectively sleeved with springs 5, and the surfaces of the sliding rods 4 are respectively slidably provided with limit rods 6, and the ends of the limit rods 6 close to each other are respectively rotatably provided with rings 7.

[0027] One end of the spring 5 is fixedly connected to the limiting rod 6 , and the other end of the spring 5 is fixedly connected to the horizontal bar 3 .

[0028] The limiting rods 6 are L-shaped, and the limiting rods 6 are slidably disposed in the moving grooves.

[0029] The chain link 1 has two through holes on the open side, and connecting rods 8 are inserted into the two through holes. A nut is threadedly connected to the right side of the connecting rod 8 .

[0030] Through the above technical solution, the two ends of the chain ring 1 are not closed, so that two adjacent chain rings 1 can be disassembled through the openings. A U-shaped seat 2 is fixedly connected to the bottom end of the chain ring 1. When adjacent chain rings 1 are mounted on each other, the chain located below is hung in the U-shaped seat 2, providing additional structural support. Cross bars 3 are fixedly connected to both sides of the top of the U-shaped seat 2. A movable groove is provided on the top of the cross bar 3 for fixing the slide rod 4. A limit plate is slidingly arranged on the surface of the slide rod 4, and a spring 5 is sleeved thereon. Pulling the limit rod 6 can make the spring 5 is contracted, and a ring 7 is rotatably arranged at one end of the limiting rod 6 that is close to each other. The ring 7 is used to limit the chain ring 1 hung in the U-shaped seat 2. The chain ring 1 has two through holes on the opening side, and connecting rods 8 are inserted in the two through holes. A nut is threadedly connected to the right side of the connecting rod 8. The connecting rod 8 can close the two ends of the ring chain and enhance the strength of the chain ring 1. When a single chain ring 1 is damaged, the connecting rod 8 is disassembled, the limiting rod 6 is pushed to both sides, the limit of the damaged chain ring 1 is released, and the damaged chain ring 1 is taken out from the opening for replacement.

[0031] Embodiment 2

[0032] See also Figure 4 On the basis of the first embodiment, it is further obtained that: a movable groove is provided inside the U-shaped seat 2, and a ball 9 is movably arranged in the movable groove.

[0033] A plurality of balls 9 are provided, and the plurality of balls 9 are arranged along the movable groove.

[0034] The arc surface sleeve on the top of the chain ring 1 is provided with a wear-resistant pad 10.

[0035] Through the above technical scheme, a movable groove is opened inside the U-shaped seat 2, and a ball 9 is movably arranged in the movable groove. The arrangement of the ball 9 is used to reduce the friction of the chain ring 1 during the movement of the U-shaped seat 2 and increase its wear resistance. The arc surface of the top of the chain ring 1 is provided with a wear-resistant pad 10, which further enhances the wear resistance of the chain and extends its service life.

[0036] During actual operation, when this device is in use, when a single chain link 1 is damaged, the connecting rod 8 is disassembled, the limit rod 6 is pushed to both sides, the limit of the damaged chain link 1 is released, and the damaged chain link 1 is taken out from the opening and replaced. A movable groove is provided inside the U-shaped seat 2, and a ball 9 is movably arranged in the movable groove. The arrangement of the ball 9 is used to reduce the friction of the chain link 1 during movement in the U-shaped seat 2 and increase its wear resistance. The arc surface on the top of the chain link 1 is provided with a wear-resistant pad 10, which further enhances the wear resistance of the chain and extends its service life.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant electric hoist chain, comprising a chain link (1), characterized in that: The two ends of the chain ring (1) are not closed, the bottom end inside the chain ring (1) is fixedly connected to a U-shaped seat (2), the two sides of the top of the U-shaped seat (2) are respectively fixedly connected to horizontal bars (3), the tops of the horizontal bars (3) are respectively provided with movable grooves, the movable grooves are respectively fixedly connected to sliding rods (4), the surfaces of the sliding rods (4) are respectively sleeved with springs (5), the surfaces of the sliding rods (4) are respectively slidably provided with limit rods (6), and the ends of the limit rods (6) that are close to each other are respectively rotatably provided with circular rings (7).

2. A wear-resistant electric hoist chain according to claim 1, characterized in that: One end of the spring (5) is fixedly connected to the limiting rod (6), and the other end of the spring (5) is fixedly connected to the horizontal bar (3).

3. The wear-resistant electric hoist chain according to claim 1, characterized in that: The limiting rods (6) are L-shaped, and the limiting rods (6) are respectively slidably arranged in the moving grooves.

4. The wear-resistant electric hoist chain according to claim 1, characterized in that: The chain link (1) is provided with two through holes on the opening side, and connecting rods (8) are inserted into the two through holes. A nut is threadedly connected to the right side of the connecting rod (8).

5. The wear-resistant electric hoist chain according to claim 1, characterized in that: A movable groove is provided inside the U-shaped seat (2), and a ball (9) is movably arranged in the movable groove.

6. The wear-resistant electric hoist chain according to claim 5, characterized in that: A plurality of the balls (9) are provided, and the plurality of balls (9) are arranged along the movable groove.

7. The wear-resistant electric hoist chain according to claim 1, characterized in that: The arc surface sleeve on the top of the chain link (1) is provided with a wear-resistant pad (10).

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